Best Relays Deals Online in the UK (10 Deals Found)

Last Updated - 15/12/2025 Sort By:

Best Choice
AEDIKO

New
AEDIKO 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger
12V Relay Module: Working Voltage: DC 12V; Maximum Load: AC 250V/10A, DC 30V/10A; Trigger Current of Opto-Isolator: 5mA

£6.99
Gebildet

New
Gebildet 3pcs 12V Fuse Relay Switch 12 AWG Harness Set with Built-in Diode- 30A ATO/ATC Blade Fuse, 4-Pin SPST Automotiv
Upgraded Version - Automotive relays built in fuse socket with included 30A blade fuse, no need of a separate fuse holde

£11.99
Best Value
Gebildet

New
Gebildet JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Color-labeled Wires for Automotive Truck
Brand new heavy duty SPST(Single Pole Single Throw) relays with color-labeled wires

£7.99
GLARKS

New
Glarks 10 Pack 12V 30/40 Amp 5-Pin SPDT Electrical Relays Switch for Automotive Truck Boat Marine
★ Package: Including 10 pack 5-Pin SPDT(Single Pole Double Throw) Electrical Relays Switch packed in a plastic box.

£12.99
Heschen

New
Heschen Gereral Purpose Relay MK2P-I AC 220V Coil DPDT 8 Pin with Plug-in Terminal Socket PYF83A
Contact Capacity: 250VAC/28VDC 10A RES; 250VAC 7A GEN

£7.69
AEDIKO

New
AEDIKO 4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger
5V Relay Module: Working Voltage: DC 5V; Maximum Load: AC 250V/10A, DC 30V/10A; Trigger Current of Opto-Isolator: 5mA

£6.99
Gebildet

New
Gebildet 2pcs Car Relay Harness 12V 40A 4 Pin SPST Harness Sockets with Color-labeled Wires for Automotive Truck Motorcy
Brand new heavy duty SPST(Single Pole Single Throw)relays with color-labeled wires.

£6.99
SHUNYABEI

New
2Pcs JD1912 Automotive Relay Switch & Starter 12V 40A SPST 4-Pin for Heavy Duty Cars, Trucks, Motorcycles, Boats (Black)
Package Includes :You will get 2Pcs JD1912 4 pin 12V/40A SPST Automotive Relay

£4.99
Ehdis

New
Ehdis 4 Pin 12V Relay 30A Multi-Purpose Automotive Truck Car Relay Heavy Duty Standard Relay Kit, Pack of 2
12V 30A 4-Prongs High-current welded connections for reliability

£6.99
QitinDasen

New
QitinDasen 5 Pieces 5 Pin Car Relay, 12V 40A SPDT Automotive Relay with Harness Socket and 14/16 AWG Pre-Wired, for Car
Professional 5 pin automotive relay with SPDT design (Single Pole Double Throw) capable of opening or closing a circuit.

£13.99

10 Relays deals are available from: Amazon stores, starting from £4.99.
The biggest discount we found is 10%% on AEDIKO 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger at Amazon.
The lowest price we found is £4.99 while the highest is £13.99.
Prices for the best Relays deals average at £8.76.
Last updated on December 15, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Relays.